Supplementary material 1 from: Lyu Z-T, Wang J, Zeng Z-C, Zhou J-J, Qi S, Wan H, Li Y-Y, Wang Y-Y (2021) A new species of the genus Tylototriton (Caudata, Salamandridae) from Guangdong, southern China, with discussion on the subgenera and species groups within the genus. Vertebrate Zoology 71: 697-710. https://doi.org/10.3897/vz.71.e73563